...it is already stopping on those signals.
```
(gdb) handle SIG33 SIG34
Signal        Stop	Print	Pass...

...From the changelog;

What should I tell gdb to handle to catch those? `SIG33` and...

...Walter Bright <bugzilla@digitalmars.com> ---

Here is gdb stack:
```
Breakpoint 2, Array<Expression*>::operator[](unsigned...

...I'll try to run dmd under gdb in hope to get more details but...

...nicer and more obvious way.

Also in GDB it's always useful to look at...

Did you try to use GDC? As gdb more gcc tool
And for llvm should...

...the non-stop mode maybe : https://sourceware.org/gdb/onlinedocs/gdb/Non_002dStop-Mode.html

Here is gdb stack:
```
Breakpoint 2, Array<Expression*>::operator[](unsigned long) (this=..., i=1722) at...

...I'll try to run dmd under gdb in hope to get more details but...

...However under gdb, the program fails as soon as I start it:

```
(gdb) r
[Thread...